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#ifndef nsIMenuRollup_h___
#define nsIMenuRollup_h___

#include "nsISupports.h"
#include "nsTArray.h"

class nsIWidget;
class nsIContent;
class nsPIDOMWindow;

#define NS_IMENUROLLUP_IID \
  {0xa707b588, 0xa564, 0x488d, \
    { 0x87, 0xb6, 0xdb, 0x71, 0x2d, 0x78, 0x9d, 0x4c }}

class nsIMenuRollup : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IMENUROLLUP_IID)

  /*
   * Retrieve the widgets for open menus are store them in the array
   * aWidgetChain. The number of menus of the same type should be returned,
   * for example, if a context menu is open, return only the number of menus
   * that are part of the context menu chain. This allows closing up only
   * those menus in different situations.
   */
  virtual PRUint32 GetSubmenuWidgetChain(nsTArray<nsIWidget*> *aWidgetChain) = 0;

  /**
   * Adjust the position of open panels when a window is moved or resized.
   */ 
  virtual void AdjustPopupsOnWindowChange(nsPIDOMWindow* aWindow) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsIMenuRollup, NS_IMENUROLLUP_IID)

#endif